Influenza activity is currently high in California, with a significant number of flu-related hospitalizations and deaths reported this season. Fever is the body's natural response to fight off ...

Add Yahoo as a preferred source to see more of our stories on Google. Body aches can still be a sign of the flu even if you don't have a fever. Milos Dimic/Getty Images The most common cause of body ...

Rheumatic fever (RF) is a fairly rare inflammatory condition in developed countries that can develop as a complication of untreated strep throat caused by group A streptococcal infections. It ...

The primary culprit behind fever blisters is the herpes simplex virus, specifically HSV-1. This highly contagious virus is easily transmitted through close personal contact, such as kissing or sharing ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." If you’re wondering: Can allergies cause a fever? You’re not alone—there are lots of myths about ...

Most people think that fever is a sign of sickness, however, fever is more of a symptom, rather than a disease. A fever is a common sign that your body is fighting an infection, and is proof that your ...

No, migraine cannot cause a fever. If they occur together, it may be a sign of another condition, such as a flu, cold, or infection. In severe cases, migraine may cause symptoms, such as sweating and ...

Running a high fever during early pregnancy is known to be dangerous. A first-trimester fever can increase a baby's risk of developing a congenital heart defect and certain facial deformities, such as ...